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DF018 & DF057 fault Clio 172



  Clio pH 172
Hi

I got a problem with my Clio.

Reader tells me that "upstream oxygen sensor heating cirkut, open cirkut" df018 and "upstream oxygen sensor heating, short cirkut" df057

The engine management ligh is on and the car sometimes hesitate when throttle, very noticeable when engine is cold.
The idel is also very rough but runs fine when driving normal.

Both lambdas is changed at 2017 and I have again changed both without result.
I have also changed sparkplugs,leaders,map sensor,cat and all injectors. Atm I'm kind of stuck and don't really know what to look for.

Could there be a problem with the exhaust?
Excuse my English,,😅
 

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